Which description most accurately reflects the function of cookies?

• A. Cookies are files websites/apps use to store info about your browsing activity
• B. They are used to execute code on servers
• C. They are used to verify your hardware vendor
• D. They provide an alternative to DNS

Answer: (A)

Cookies are small data files that websites store on your device through your browser to remember information about your visit. Their main function is to keep track of details about your browsing activity so the site can recognize you, remember that you’re logged in, retain language or display preferences, and keep items in a shopping cart between pages. They can also be used for analytics and to tailor advertising based on your browsing.

They do not execute code on servers, so they aren’t used to run programs. They aren’t for verifying your hardware vendor, which involves other identification methods. And they aren’t an alternative to DNS, since DNS translates domain names to IP addresses for network routing, while cookies live in your browser as stored data. You can manage cookies by adjusting browser settings, clearing them, or using private browsing if you want more control over what’s stored.